Make conduit-uri info easier to be copied into arcrc

Summary:
add the conduit URI and the username together with the arc
certificate to the setting page.

Test Plan:
run arc diff to make sure it still works after copying the
generated test into the .arcrc file.

Reviewed By: epriestley
Reviewers: epriestley
CC: epriestley
Differential Revision: 73

src/applications/people/controller/settings/PhabricatorUserSettingsController.php

@@ -171,18 +171,43 @@ class PhabricatorUserSettingsController extends PhabricatorPeopleController {
       $notice = null;
     }
 
+    $host = PhabricatorEnv::getEnvConfig('phabricator.base-uri') . 'api/';
+    $conduit_setting = sprintf(
+      '    %s: {'."\n".
+      '      "user" : %s,'."\n".
+      '      "cert" : %s'."\n".
+      '    }'."\n",
+      json_encode($host),
+      json_encode($user->getUserName()),
+      json_encode($user->getConduitCertificate()));
+
     $cert_form = new AphrontFormView();
     $cert_form
       ->setUser($user)
       ->appendChild(
-        '<p class="aphront-form-instructions">Copy and paste this certificate '.
-        'into your <tt>~/.arcrc</tt> in the "hosts" section to enable '.
-        'Arcanist to authenticate against this host.</p>')
+        '<p class="aphront-form-instructions">Copy and paste the host info '.
+        'including the certificate into your <tt>~/.arcrc</tt> in the "hosts" '.
+        'session to enable Arcanist to authenticate against this host.</p>')
+      ->appendChild(
+        id(new AphrontFormMarkupControl())
+          ->setControlStyle('white-space: pre; font-family: monospace')
+          ->setValue(
+            '{'."\n".
+            '  ...'."\n".
+            '  "hosts" : {'."\n"))
       ->appendChild(
         id(new AphrontFormTextAreaControl())
-          ->setLabel('Certificate')
+          ->setLabel('Credentials')
           ->setHeight(AphrontFormTextAreaControl::HEIGHT_SHORT)
-          ->setValue($user->getConduitCertificate()));
+          ->setControlStyle('font-family: monospace')
+          ->setValue($conduit_setting))
+      ->appendChild(
+        id(new AphrontFormStaticControl())
+          ->setControlStyle('white-space: pre; font-family: monospace')
+          ->setValue(
+            '  }'."\n".
+            '  ...'."\n".
+            '}'));
 
     $cert = new AphrontPanelView();
     $cert->setHeader('Arcanist Certificate');

src/applications/people/controller/settings/__init__.php

@@ -24,7 +24,6 @@ phutil_require_module('phabricator', 'view/form/control/markup');
 phutil_require_module('phabricator', 'view/form/control/static');
 phutil_require_module('phabricator', 'view/form/control/submit');
 phutil_require_module('phabricator', 'view/form/control/text');
-phutil_require_module('phabricator', 'view/form/control/textarea');
 phutil_require_module('phabricator', 'view/form/error');
 phutil_require_module('phabricator', 'view/layout/panel');
 phutil_require_module('phabricator', 'view/layout/sidenav');

src/docs/arcanist_certificates.diviner

@@ -22,5 +22,4 @@ To retrieve the certificate for a Phabricator host:
   - Login to Phabricator.
   - Go to Settings > Arcanist Certificate.
 
-Copy the certificate into the "cert" field, and specify your username in the
-"user" field.
+Copy the host info including the certificate into the "hosts" section.

src/view/form/control/textarea/AphrontFormTextAreaControl.php

@@ -50,6 +50,7 @@ class AphrontFormTextAreaControl extends AphrontFormControl {
         'name'      => $this->getName(),
         'disabled'  => $this->getDisabled() ? 'disabled' : null,
         'class'     => $height_class,
+        'style'     => $this->getControlStyle(),
         'id'        => $this->getID(),
       ),
       phutil_escape_html($this->getValue()));